Null0 is a fun & easy engine for making games that run in browser, and natively on any kind of computer, using any supported language.
It's good for learning & playing.
You can find the project on github.
Nullo games are called "carts" which is just a zip-file with any assets + main.wasm that is needed to run your game. You can make that wasm in any language that supports that (quite a few.)
The API is simple & easy to use, in any language.